What ever Igo Primo and TomTom Maps has it not the same for Sygic Truck.
No where does it say to use TomTom maps for Sygic Truck.
Only HERE maps.
Plus I am not to impressed with Sygic route algorithm, both for TomTom and Here maps.
If you are a Truck Driver then I would put my money into a professional GPS Unit like TomTom or Garmin.
You want your gps to work first time every time.
You take it out of the box and you are ready to rock and roll.
Not screw around with apps on a phone or tablet that might work..........